13136979 has 8 divisors (see below), whose sum is σ = 18277632. Its totient is φ = 8377160.

The previous prime is 13136957. The next prime is 13137011. The reversal of 13136979 is 97963131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13136979 - 2⁵ = 13136947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13136909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95127 + ... + 95264.

It is an arithmetic number, because the mean of its divisors is an integer number (2284704).

Almost surely, 2^13136979 is an apocalyptic number.

13136979 is a deficient number, since it is larger than the sum of its proper divisors (5140653).

13136979 is a wasteful number, since it uses less digits than its factorization.

13136979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190417.

The product of its digits is 30618, while the sum is 39.

The square root of 13136979 is about 3624.4970685600. The cubic root of 13136979 is about 235.9564400596.

The spelling of 13136979 in words is "thirteen million, one hundred thirty-six thousand, nine hundred seventy-nine".